Answer:
5
Step-by-step explanation:
its 5
50%, if you put it into a calculator 25/50 gives you .50, move decimal 2 times to the right to get 50.
6 hours and 40 mins which would be 6:45
He saves $ 1.75 each day from his allowance.
<u><em>Explanation</em></u>
The ratio of his savings and expenses is 7 : 5
Lets assume, his savings = 7x dollar and his expenses is 5x dollar
Given that, his daily allowance is $3. So....

So, the amount of his savings each day 
He could make seven 3/8lbs portions of meat.
I was a little stumped too, but I think this is it. That's my work process, though